M1.8 earthquake 38 km NNE of Amboy, Washington
A magnitude 1.8 earthquake struck 38 km NNE of Amboy, Washington on Tue, Dec 23, 2003, 5:52 PM PST (01:52 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.3 37 km NNE of Amboy, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2003-12-24 01:52:26 UTC
- Depth
- 0.3 km (0.2 mi), shallow
- Epicenter
- 46.202° N, 122.189° W
- Region
- Washington
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.2 km horizontally, 0.1 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 54°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.822 km S of Morton, Washington · 8316 days ago · 6 km deep · 18 km away
- 2.337 km NNE of Amboy, Washington · 8312 days ago · 0 km deep · 0 km away
- 2.15 km WNW of North Portland, Oregon · 8302 days ago · 17 km deep · 77 km away
- 2.019 km NNE of Ashford, Washington · 8295 days ago · 12 km deep · 82 km away
- 2.023 km ENE of Ashford, Washington · 8292 days ago · 1 km deep · 79 km away
- 1.815 km ENE of Kalama, Washington · 8290 days ago · 8 km deep · 40 km away
- 1.80 km NNW of Orting, Washington · 8284 days ago · 11 km deep · 100 km away
- 1.52 km SE of Portland, Oregon · 8271 days ago · 18 km deep · 85 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10592893. Read Fri, Oct 2, 2026, 3:05 AM UTC.